this is their first visit to school中to 的理解
问题描述：
this is their first visit to school中to 的理解
答
这是我第一次参观这所学校.
to 是在这儿是介词,例如：listen to music.to后加名词
to可以做不定式,例如,I like to go hiking.to 后加动词原形.